Theory Seminar

DATE: 2010-10-12 11:00 - 12:00
PLACE: Kenkyu Honkan 1F Meeting Room 1
TITLE: The QCD nature of Dark Energy, signatures and applications
CONTACT: ISHIBASHI Akihiro, akihiro.ishibashi-AT-kek.jp
SPEAKER: Dr Federico Urban  (Univ. British Columbia)
LANGUAGE: English
ABSTRACT: The origin of the observed dark energy could be explained entirely within the standard model, with no new fields required. I will review the ideas underlying the appearance of the Veneziano ghost oflow-energy QCD and show how nontrivial spacetimes (compact topologies and time-dependent background) give rise to interesting new effects such as Casimir energies and gravitational production of unphysical states. I will then discuss the cosmological applications of such effects (dark energy, generation of primordial magnetic fields) and the possible many ways for this proposal to be tested.

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